IMPULSE NC, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B60M POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES 29
 
  
 
E01B PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS 220
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 2100

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5740025 Electronic controller for a trolley pole switch mechanismMay 01, 96Apr 14, 98[H02M]
5691888 Power controlling unit for a trolley pole switch controllerMay 01, 96Nov 25, 97[H02M, E01B, B60M]
5390772 Switchable high speed frog mechanismJul 16, 93Feb 21, 95[E01B, B60M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6025702 Signal processing unit for a trolley pole switch controllerExpiredMay 01, 96Feb 15, 00[G05F]

Top Inventors for This Owner

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